<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
</head>
<body>
<p>
<input type="text" id="txt">
<button id="btnAdd">添加</button>
</p>
<ul>
<li>
<span>列表1</span>
<button>删除</button>
</li>
<li>
<span>列表2</span>
<button>删除</button>
</li>
<li>
<span>列表3</span>
<button>删除</button>
</li>
</ul>
<script>
var but=document.getElementById("btnAdd");
but.onclick=function(){
var li=document.createElement("li");
var value=document.querySelector("input").value;
li.innerHTML= `
<span>${value}</span>
<button>删除</button>
`
document.querySelector("ul").appendChild(li)
var bse=document.querySelectorAll("button")
for(i=1;i<bse.length;i++){
bse[i].onclick=function(){
this.parentNode.remove();
}
}
}
var bse=document.querySelectorAll("button")
for(i=1;i<bse.length;i++){
bse[i].onclick=function(){
this.parentNode.remove();
}
}
</script>
</body>
</html> 0
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列表的添加，删除效果
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